What is the formula, name and bond for hydrogen and oxygen?

What is the [oh-] in a solution with a poh of 3.90

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2